Fastening tool



FIG. 1 is a right side view of a fastening tool according to an embodiment, wherein a left side view is a mirror image thereof;

FIG. 2 is a front view of the fastening tool of FIG. 1;

FIG. 3 is a rear view of the fastening tool of FIG. 1; and,

FIG. 4 is a bottom view of the fastening tool of FIG. 1.

The broken lines are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a fastening tool, as shown and described. 